| 0,0 → 1,51 |
|---|
| |
| x_holes = 3; |
| y_holes = 4; |
| pedestal_height = 12; // designed for use the MLAB standard 20mm screws. |
| |
| MLAB_grid = 10.16; |
| thickness = 1; // thickness of bottom belt |
| pile_radius = 4; // radius of pile around screw |
| x_size = x_holes * MLAB_grid ; |
| y_size = y_holes * MLAB_grid ; |
| mount_hole = 3.5; |
| //nut_size = 6.8; //size suitable for PLA material |
| nut_size = 6.7; //size suitable for ABS material |
| clear = 0.175; |
| |
| |
| |
| |
| MLAB_grid_xoffset = MLAB_grid/2; |
| MLAB_grid_yoffset = MLAB_grid/2; |
| |
| grid_list = [for (j = [MLAB_grid_xoffset : MLAB_grid: x_size], i = [MLAB_grid_yoffset :MLAB_grid: y_size]) |
| if ((j>(x_size-10) && i>(y_size-10)) || (j<10 && i<10) || (j<10 && i>(y_size-10)) || (j>(x_size-10) && i<10) ) [j, i] ]; |
| |
| |
| difference () { |
| union () { |
| for (j = grid_list) { |
| translate (concat(j, [0])) |
| cylinder (h = pedestal_height, r= pile_radius, $fn=20); |
| } |
| |
| translate ([MLAB_grid_xoffset , MLAB_grid_yoffset , 0]) |
| minkowski() { |
| cube([x_size - 2*(MLAB_grid/2 - pile_radius) - 2*pile_radius, y_size - 2*(MLAB_grid/2 - pile_radius) - 2*pile_radius, thickness]); // base plastics brick |
| cylinder(r=pile_radius,h=0.1); |
| } |
| } |
| |
| translate ([2*pile_radius, 2*pile_radius, 0]) // central hole in module support |
| cube([x_size-4*pile_radius, y_size-4*pile_radius, 2*thickness]); |
| |
| // MLAB grid holes |
| for (j = grid_list) { |
| translate (concat(j, [0])) |
| cylinder (h = 3, r= (nut_size+clear)/2, $fn=6); |
| translate (concat(j, [3.2])) // one solid layer for slicer (the holes will be pierced on demand ) |
| cylinder (h = pedestal_height, r= mount_hole/2, $fn=10); |
| } |
| } |
| |